Highly efficient and stable calcium looping based pre-combustion CO2 capture for high-purity H2 production

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

“…However, there exists many CO 2 -intensive industries for which an integration with the calcium looping process is considered beneficial, e.g., the cement industry, ,− even though current prices of CO 2 are low . The calcium looping process can be designed flexibly such that it is suitable for the CO 2 capture from power plants with large load fluctuations. , The economic attractiveness of the calcium looping process (or oxide/carbonate looping processes in general) increases further if (besides CO 2 capture) products are generated that have a certain value, e.g., hydrogen (sorption-enhanced reforming or water–gas shift) − or thermal energy (thermochemical energy storage), − and may therefore accelerate the implementation at the industrial scale (see section ).…”

Investigations on Kinetics and Mechanisms of CaCO3 Calcination in Calcium Looping

“…26,27,76 It is noted that calcium carriers need to be cycled tens to hundreds of times for the efficiency and economy of the calcium looping process. 77,78 During the multiple cycles, the microstructure of the carrier changes significantly, 79−82 and the apparent kinetic model changes consequently. Therefore, the kinetic model corresponding to the microstructure of the carrier can be used for predicting the reaction behavior under various conditions and optimizing the parameters of the calcination reactor.…”

Hybrid organic–inorganic membranes based on sulfonated poly (ether ether ketone) matrix and iron-encapsulated carbon nanotubes and their application in CO2 separation

“…This article compares the obtained experimental results with the results predicted using the theoretical model developed by Chehrazi et al 58 Therefore, the values of P eff /P m for CO 2 were calculated, using the relationship given in eqn (6), assuming that L ¼ 10 000 nm, d ¼ 10 nm, and changing one of the parameters, respectively, while the others remain constant. The values of P NT /P m , 4, and a int were varied in the following ranges 1-10 000, 0.005-0.1, and 50-500 nm, respectively.…”

“…There are three leading technologies to capture CO 2 : pre-combustion, intra-combustion, and postcombustion. [5][6][7][8][9][10][11][12][13][14][15][16][17] The last of these technologies, consisting in the separation of CO 2 from ue gas, can be adapted to existing industrial plants, and the released CO 2 can be a substrate for subsequent processes. CO 2 separation can be performed using various conventional methods such as absorption, adsorption, chemical looping combustion, hydrate-based separation, and cryogenic distillation.…”